- Company number
- 10528370
- Incorporated
- 15 Dec 20169 years trading
- Registered office
- College House C/O Asml, 17, King Edwards Road, Ruislip, Middlesex, HA4 7AE
- Nature of business
- Construction of domestic buildings
Mill Lane Project Limited is a 9-year-old private limited company registered in Ruislip, company number 10528370, one of 161 building contractors in Ruislip. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £13K (-4.7%) on the year before, to £269K.
- Net assets rose in 2 of 7 year-on-year comparisons on record.
- Current assets of £348K against £76K owed within a year: 4.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Mar 2025 | £269K | £348K | £76K | 2 | |
| 30 Mar 2024 | £282K | £379K | £84K | 2 | |
| 30 Mar 2023 | £265K | £389K | £101K | 2 | |
| 31 Mar 2022 | £322K | £486K | £132K | 2 | |
| 31 Mar 2021 | £381K | £859K | £435K | 2 | |
| 31 Mar 2020 | £419K | £108K | £723K | £304K | 2 |
| 31 Mar 2019 | £521K | £662K | £1.1M | £620K | 2 |
| 31 Mar 2018 | £200 |
Where Mill Lane Project Limited is registered
The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 7AE on a map.
Other trade companies in HA4
- SSC London LtdGroundworks and demolition
- DCR Industriltdal LtdPainters and decorators
- Katardino Monten for General Contracting and Supplies LtdCivil engineering
- Apex Build & Move LtdBuilders
- Ridgeway Building Contracts LimitedProperty developers
- Azya Farah LtdBuilders
- Howdens Roofing & Guttering LimitedRoofers
- Vetro Glazing LimitedGlaziers
Also registered at this address
8 other companies use the same registered office as Mill Lane Project Limited.
- Bright Spark Engineering LtdElectricians
- Danson Homes LimitedProperty developers
- Officina Macchina LtdMechanics and garages
- Quill Projects LimitedProperty developers
- SKM Contracting LtdProperty developers
- The Construction Services Agency LimitedCivil engineering
- Water End Developments LimitedProperty developers
- WRD Systems Integration LtdSpecialist contractors
What happens if Mill Lane Project Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 30 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2026 to 30 Jan 2027 | £150 |
| 1 to 3 months late | 31 Jan 2027 to 30 Mar 2027 | £375 |
| 3 to 6 months late | 31 Mar 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Mar 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Mar 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 10528370
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 December 2016 (9 years ago)
- Registered office
- College House C/O Asml, 17, King Edwards Road, Ruislip, Middlesex, HA4 7AE
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 March 2025
- Last confirmation statement
- 14 December 2025
- Charges (mortgages)
- 3 outstanding of 5 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Ruislip
Other active building contractors registered in Ruislip.
- Model Home Developments Limited2025
- Muldoon Construction Ltd2026
- Netheat Limited2015
- New Build & Construction Ltd2020
- Northstead Building Contractors Ltd2026
- Oiko Revamp Ltd2025
- Oldfield Construction (London) Limited2017
- Olmek Limited2015
All building contractors in Ruislip · All trades in Ruislip · Builders across the UK
Frequently asked questions
When are Mill Lane Project Limited's accounts due?
Mill Lane Project Limited's next accounts are due at Companies House by 30 December 2026 (in 78 days), covering the period to 30 March 2026.
When is Mill Lane Project Limited's CT600 due?
The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.
Is Mill Lane Project Limited still trading?
Mill Lane Project Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Mill Lane Project Limited do?
Mill Lane Project Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Mill Lane Project Limited?
Mill Lane Project Limited was incorporated on 15 December 2016, 9 years ago.
What is the penalty if Mill Lane Project Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Mill Lane Project Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.